TSPY_FAREIT.FXA
Trojan-PSW.Win32.Tepfer.npos (Kaspersky), PWS:Win32/Fareit.gen!C (Microsoft), W32/Kryptik.BFHP (Fortinet)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It modifies the Internet Explorer Zone Settings.
It deletes itself after execution.
TECHNICAL DETAILS
117,760 bytes
EXE
Yes
09 Jul 2013
Arrival Details
This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Autostart Technique
This spyware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{Random File Name} = "%Application Data%\{Random Folder Name}\{Random File Name}.exe"
Other System Modifications
This spyware adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
{Random Characters}
{Random Characters} = "{Random Strings}"
HKEY_CURRENT_USER\Software\Microsoft\
{Random Characters}
{Random Characters} = "{Random Hex Values}"
HKEY_CURRENT_USER\Software\WinRAR
{Random Hash} = "{Random Hex Values}"
HKEY_CURRENT_USER\Software\WinRAR
Client Hash = "{Random Hex Values}"
HKEY_CURRENT_USER\Software\WinRAR
HWID = "{Random Hex Values}"
It modifies the following registry entries:
HKEY_CURRENT_USER\Identities
Identity Ordinal = "2"
(Note: The default value data of the said registry entry is "1".)
Web Browser Home Page and Search Page Modification
This spyware modifies the Internet Explorer Zone Settings.
Other Details
This spyware connects to the following possibly malicious URL:
- http://{BLOCKED}earoundweddingphotography.com/forum/viewtopic.php
- http://{BLOCKED}nvideo.com/forum/viewtopic.php
- http://{BLOCKED}usonline.com/forum/viewtopic.php
- http://{BLOCKED}ineordering.com/forum/viewtopic.php
- http://{BLOCKED}ousefanreviews.com/6GhQRPm.exe
- http://{BLOCKED}i.com/eK1q.exe
- http://www.{BLOCKED}trade.co.uk/ULiC.exe
- http://{BLOCKED}na.net/i7K9wKA.exe
- http://{BLOCKED}131.0:3285
- http://{BLOCKED}.118.144:5237
- http://{BLOCKED}.11.65:4797
- http://{BLOCKED}64.68:2123
- http://{BLOCKED}.49.183:5371
- http://{BLOCKED}.172.39:4355
- http://{BLOCKED}.114.217:1417
- http://{BLOCKED}4.133.110:5212
- http://{BLOCKED}8.67.140:7301
- http://{BLOCKED}.7.235:1176
- http://{BLOCKED}.232.143:4425
- http://{BLOCKED}2.83.105:5985
- http://{BLOCKED}1.120.6:9332
- http://{BLOCKED}7.117.139:8995
It drops the following file(s)/component(s):
- %Application Data%\{Random Folder}\{Random File Name}.exe
- %TEMP%\{Random File Name}.exe
- %TEMP%\{Random File Name}.bat
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)
It deletes itself after execution.
SOLUTION
9.300
10.144.03
09 Jul 2013
10.145.00
10 Jul 2013
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Scan your computer with your Trend Micro product and note files detected as TSPY_FAREIT.FXA
Step 3
Restart in Safe Mode
Step 4
Search and delete these files
- %Application Data%\{Random Folder}\{Random File Name}.exe
- %TEMP%\{Random File Name}.exe
- %TEMP%\{Random File Name}.bat
Step 5
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- {Random File Name} = "%Application Data%\{Random Folder Name}\{Random File Name}.exe"
- {Random File Name} = "%Application Data%\{Random Folder Name}\{Random File Name}.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\{Random Characters}
- {Random Characters} = "{Random Strings}"
- {Random Characters} = "{Random Strings}"
- In HKEY_CURRENT_USER\Software\Microsoft\{Random Characters}
- {Random Characters} = "{Random Hex Values}"
- {Random Characters} = "{Random Hex Values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- {Random Hash} = "{Random Hex Values}"
- {Random Hash} = "{Random Hex Values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- Client Hash = "{Random Hex Values}"
- Client Hash = "{Random Hex Values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- HWID = "{Random Hex Values}"
- HWID = "{Random Hex Values}"
Step 6
Restore this modified registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Identities
- From: Identity Ordinal = "2"
To: Identity Ordinal = "1"
- From: Identity Ordinal = "2"
Step 7
Reset Internet security settings
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_FAREIT.FXA. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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